61318223910 has 112 divisors (see below), whose sum is σ = 167751856224. Its totient is φ = 16127392896.

The previous prime is 61318223893. The next prime is 61318223921. The reversal of 61318223910 is 1932281316.

61318223910 is a `hidden beast` number, since 613 + 1 + 8 + 2 + 2 + 39 + 1 + 0 = 666.

61318223910 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 474559 + ... + 589781.

Almost surely, 2^61318223910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61318223910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83875928112).

61318223910 is an abundant number, since it is smaller than the sum of its proper divisors (106433632314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61318223910 is a wasteful number, since it uses less digits than its factorization.

61318223910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115321 (or 115306 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 61318223910 in words is "sixty-one billion, three hundred eighteen million, two hundred twenty-three thousand, nine hundred ten".